Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
Internal Codes
  • T34.7

    Frostbite with tissue necrosis of knee and lower leg

  • T34.70

    Frostbite with tissue necrosis of unspecified knee and lower leg

  • T34.70XA

    Frostbite with tissue necrosis of unspecified knee and lower leg, initial encounter

  • T34.70XD

    Frostbite with tissue necrosis of unspecified knee and lower leg, subsequent encounter

  • T34.70XS

    Frostbite with tissue necrosis of unspecified knee and lower leg, sequela

  • T34.71

    Frostbite with tissue necrosis of right knee and lower leg

  • T34.71XA

    Frostbite with tissue necrosis of right knee and lower leg, initial encounter

  • T34.71XD

    Frostbite with tissue necrosis of right knee and lower leg, subsequent encounter

  • T34.71XS

    Frostbite with tissue necrosis of right knee and lower leg, sequela

  • T34.72

    Frostbite with tissue necrosis of left knee and lower leg

  • T34.72XA

    Frostbite with tissue necrosis of left knee and lower leg, initial encounter

  • T34.72XD

    Frostbite with tissue necrosis of left knee and lower leg, subsequent encounter

  • T34.72XS

    Frostbite with tissue necrosis of left knee and lower leg, sequela

  • T34.8

    Frostbite with tissue necrosis of ankle, foot, and toe(s)

  • T34.81

    Frostbite with tissue necrosis of ankle

  • T34.811

    Frostbite with tissue necrosis of right ankle

  • T34.811A

    Frostbite with tissue necrosis of right ankle, initial encounter

  • T34.811D

    Frostbite with tissue necrosis of right ankle, subsequent encounter

  • T34.811S

    Frostbite with tissue necrosis of right ankle, sequela

  • T34.812

    Frostbite with tissue necrosis of left ankle

  • T34.812A

    Frostbite with tissue necrosis of left ankle, initial encounter

  • T34.812D

    Frostbite with tissue necrosis of left ankle, subsequent encounter

  • T34.812S

    Frostbite with tissue necrosis of left ankle, sequela

  • T34.819

    Frostbite with tissue necrosis of unspecified ankle

  • T34.819A

    Frostbite with tissue necrosis of unspecified ankle, initial encounter

  • T34.819D

    Frostbite with tissue necrosis of unspecified ankle, subsequent encounter

  • T34.819S

    Frostbite with tissue necrosis of unspecified ankle, sequela

  • T34.82

    Frostbite with tissue necrosis of foot

  • T34.821

    Frostbite with tissue necrosis of right foot

  • T34.821A

    Frostbite with tissue necrosis of right foot, initial encounter

  • T34.821D

    Frostbite with tissue necrosis of right foot, subsequent encounter

  • T34.821S

    Frostbite with tissue necrosis of right foot, sequela

  • T34.822

    Frostbite with tissue necrosis of left foot

  • T34.822A

    Frostbite with tissue necrosis of left foot, initial encounter

  • T34.822D

    Frostbite with tissue necrosis of left foot, subsequent encounter

  • T34.822S

    Frostbite with tissue necrosis of left foot, sequela

  • T34.829

    Frostbite with tissue necrosis of unspecified foot

  • T34.829A

    Frostbite with tissue necrosis of unspecified foot, initial encounter

  • T34.829D

    Frostbite with tissue necrosis of unspecified foot, subsequent encounter

  • T34.829S

    Frostbite with tissue necrosis of unspecified foot, sequela

  • T34.83

    Frostbite with tissue necrosis of toe(s)

  • T34.831

    Frostbite with tissue necrosis of right toe(s)

  • T34.831A

    Frostbite with tissue necrosis of right toe(s), initial encounter

  • T34.831D

    Frostbite with tissue necrosis of right toe(s), subsequent encounter

  • T34.831S

    Frostbite with tissue necrosis of right toe(s), sequela

  • T34.832

    Frostbite with tissue necrosis of left toe(s)

  • T34.832A

    Frostbite with tissue necrosis of left toe(s), initial encounter

  • T34.832D

    Frostbite with tissue necrosis of left toe(s), subsequent encounter

  • T34.832S

    Frostbite with tissue necrosis of left toe(s), sequela

  • T34.839

    Frostbite with tissue necrosis of unspecified toe(s)

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